Mild northerlies are building for NZ while Australia has frosts expanding as Autumn weather continues on. A low in the Tasman Sea is rapidly deepening over the next two days and peaks on Friday as a storm just west of Taranaki.

Over Friday night and Saturday the storm will fall apart over NZ, bringing a windy westerly change which turns more south-west on Monday with gales across exposed parts of NZ.

Australia has more high pressure moving in from the west next week – with frosts next two nights then back to windier sou’westers this weekend (in the south-east) before the next high moves in from the west early next week… then maybe on to NZ afterwards.